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double seal manhole cover
double seal manhole cover
英
[double seal manhole cover]
美
[double seal manhole cover]
中文释义
人孔复式封盖
单词分析
单词结构:
double seal manhole cover
字母数:25
记忆提示
🎯 重点记忆:
单词拼写:double seal manhole cover
核心含义:人孔复式封盖
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更新时间:2026-02-06 22:29:37